It could be argued that any series against a divisional opponent is critical, but yes with the Red Sox 4 games ahead of the Jays a series win or sweep could close that game right up. But after that no no in their last game I expect Boston to come out swinging in this first game.

It could be argued that any series against a divisional opponent is critical, but yes with the Red Sox 4 games ahead of the Jays a series win or sweep could close that game right up. But after that no no in their last game I expect Boston to come out swinging in this first game.

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If the Jays are a game back after this series then the season is looking good. If the Red Sox sweep it will be tough for anyone in the division to catch them.

So yeah, this is a little more than random divisional opponent critical. It's also a really good test to see if the Jays will stay in the hunt for the division.